<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
<title>Country List</title>
</head>
<body>
We operate in these countries:
<ul>
    <c:forEach items="${countries}" var="country">
        <li>${country.key}</li>
        <li>${country.value}</li>
    </c:forEach>

 </br>
 使用页面对象：
    <%
        out.println(pageContext.getServletContext().getAttribute("countries"));
    %>
 </br>

    使用 application

    <%
        out.println(application.getAttribute("countries"));
    %>
 </br>
    使用 applicationScope
    <c:out value="${applicationScope.countries}" />


</ul>
</body>
</html>